FR2729442A1 - Bearing for rotating machine with roller between axle and support - Google Patents
Bearing for rotating machine with roller between axle and support Download PDFInfo
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- FR2729442A1 FR2729442A1 FR9500444A FR9500444A FR2729442A1 FR 2729442 A1 FR2729442 A1 FR 2729442A1 FR 9500444 A FR9500444 A FR 9500444A FR 9500444 A FR9500444 A FR 9500444A FR 2729442 A1 FR2729442 A1 FR 2729442A1
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- Prior art keywords
- bearing
- support
- capsule
- outer ring
- bearing according
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
- F16C25/06—Ball or roller bearings
- F16C25/08—Ball or roller bearings self-adjusting
- F16C25/083—Ball or roller bearings self-adjusting with resilient means acting axially on a race ring to preload the bearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/07—Fixing them on the shaft or housing with interposition of an element
- F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
La présente invention est relative aux paliers à roulement pour machines tournantes. The present invention relates to rolling bearings for rotating machines.
Elle trouve en particulier avantageusement application pour des paliers arrière d'alternateurs de véhicules automobiles. It particularly advantageously finds application for rear bearings of alternators of motor vehicles.
Généralement, le roulement d'un palier est maintenu sur son support au moyen de capsules ou rondelles plastiques ou éléments rapportés en acier (bague d 'arrêt par exemple). Dans tout le présent texte, on entend par palier arrière d'un alternateur le palier situé sur ledit alternateur du côté opposé à l'entraînement. Generally, the bearing of a bearing is maintained on its support by means of plastic capsules or washers or steel inserts (stop ring for example). Throughout this text, the rear bearing of an alternator means the bearing located on said alternator on the side opposite to the drive.
Ces différentes solutions tentent de concilier rigidité de fonctionnement (maintien axial de l'arbre) et liberté de mise en place. These different solutions try to reconcile operating rigidity (axial maintenance of the shaft) and freedom of installation.
Toutefois, le jeu nécessaire à la mise en place et à un fonctionnement sans contrainte sur le roulement est néfaste et peut conduire, sous l'effet des vibrations à haute vitesse, à plusieurs types de défauts. However, the clearance required for fitting and for operation without stress on the bearing is harmful and can lead, under the effect of vibrations at high speed, to several types of fault.
En particulier, la bague externe du roulement peut subir une rotation qui entraîne la destruction du palier. In particular, the outer ring of the bearing can undergo a rotation which destroys the bearing.
Egalement, le jeu axial des roulements et les vibrations à haute vitesse peuvent entraîner la destruction des chemins de roulement sur les bagues. Also, the axial clearance of the bearings and the vibrations at high speed can cause the destruction of the raceways on the rings.
Les vibrations et percussions dues à ce jeu peuvent également entraîner des usures prématurées du roulement ou de son logement sur le support du palier. The vibrations and percussions due to this play can also lead to premature wear of the bearing or of its housing on the bearing support.
Un but de l'invention est donc de proposer un palier à roulement pour machines tournantes qui permet
un centrage de qualité,
une rigidité, c'est-à-dire une absence de jeu en fonctionnement,
une immobilisation en rotation de la bague extérieure,
l'annulation des contraintes de montage ou de dilatation thermique, et
un refroidissement satisfaisant du roulement.An object of the invention is therefore to propose a rolling bearing for rotating machines which allows
quality centering,
rigidity, that is to say an absence of play in operation,
immobilization in rotation of the outer ring,
the cancellation of mounting or thermal expansion constraints, and
satisfactory cooling of the bearing.
A cet effet, l'invention propose un palier pour machine à arbre tournant comportant un roulement monté entre un support et l'arbre de la machine, le roulement présentant une bague externe, une bague interne, et des éléments de roulement interposés entre ces deux bagues, caractérisé en ce que la bague interne du roulement est montée serrée sur l'arbre en étant en butee contre un épaulement dudit arbre, la bague externe étant montée dans une capsule qui est elle-même montée non serrée sur le support et qui présente des ergots qui prennent appui sur le support et empêchent la rotation de ladite capsule par rapport au support, ladite capsule exerçant sur la bague externe un effort élastique tendant à repousser le roulement sur l'épaulement annulaire de l'arbre, de façon à annuler les jeux de fonctionnement. To this end, the invention provides a bearing for a rotating shaft machine comprising a bearing mounted between a support and the machine shaft, the bearing having an outer ring, an inner ring, and rolling elements interposed between these two. rings, characterized in that the inner ring of the bearing is mounted tight on the shaft by abutting against a shoulder of said shaft, the outer ring being mounted in a capsule which is itself mounted loosely on the support and which has lugs which bear on the support and prevent rotation of said capsule relative to the support, said capsule exerting on the outer ring an elastic force tending to push the bearing on the annular shoulder of the shaft, so as to cancel the working games.
Selon d'autres caractéristiques de l'invention la capsule comporte un fond qui présente une pluralité
de languettes élastiques réparties en cercle contre
lesquelles la bague externe du roulement est en appui ; les languettes s'étendent sensiblement tangentiellement
par rapport au cercle sur lequel elles sont réparties ; ces languettes s'étendent sensiblement tangentiellement
par rapport au cercle sur lequel elles sont réparties ; la bague externe du roulement présente des encoches dans
lesquelles les languettes sont reçues pour verrouiller
en rotation ladite bague externe par rapport à la
capsule les ergots sont des pattes élastiques qui prolongent le
bord de la capsule selon des retours en U ;; ces pattes élastiques sont maintenues par rapport au
support par des moyens qui autorisent leurs débattements
radiaux la capsule présente alternativement sur son pourtour des
pattes élastiques en retour en U qui sont en appui sur
la face du support du côté de l'épaulement annulaire et
des pattes élastiques en retour en U qui traversent le
support et coopèrent avec 1 'autre face de celui-ci ; les ergots sont maintenus sur le support par vissage
et/ou par des rainures que le support présente.According to other characteristics of the invention, the capsule has a bottom which has a plurality
elastic tabs distributed in a circle against
which the outer ring of the bearing is in support; the tongues extend substantially tangentially
relative to the circle on which they are distributed; these tabs extend substantially tangentially
relative to the circle on which they are distributed; the outer ring of the bearing has notches in
which tabs are received to lock
in rotation said outer ring relative to the
capsule the lugs are elastic tabs that extend the
edge of the capsule according to U-shaped returns; these elastic tabs are held relative to the
support by means that authorize their travel
radial the capsule alternately presents around its periphery
elastic legs back in U which are supported on
the face of the support on the side of the annular shoulder and
elastic legs back in U which cross the
support and cooperate with one other side thereof; the pins are held on the support by screwing
and / or by grooves that the support has.
L'invention concerne également un alternateur, notamment de véhicule automobile, qui comporte un tel palier. The invention also relates to an alternator, in particular for a motor vehicle, which comprises such a bearing.
Cette description est purement illustrative et non limitative. Elle doit être lue en regard des dessins annexés sur lesquels
la figure 1 est une vue en coupe de l'extrémité arrière d'un alternateur comportant un support conforme à un mode de réalisation de l'invention ;
la figure 2 est une représentation en perspective avec arraché de la capsule du support de la figure 1 ;
les figures 3 et 4 sont des représentations semblables aux figures 1 et 2, pour un autre mode de réalisation possible
les figures 5 et 6, 7 et 8, ainsi que 9 et 10, sont des représentations semblables à celles des figures 1 et 2 pour différents autres modes de réalisation d'une autre variante possible pour l'invention.This description is purely illustrative and not limiting. It should be read in conjunction with the accompanying drawings on which
Figure 1 is a sectional view of the rear end of an alternator comprising a support according to an embodiment of the invention;
Figure 2 is a perspective representation with cutaway of the capsule of the support of Figure 1;
Figures 3 and 4 are representations similar to Figures 1 and 2, for another possible embodiment
Figures 5 and 6, 7 and 8, as well as 9 and 10, are representations similar to those of Figures 1 and 2 for different other embodiments of another possible variant for the invention.
Le palier arrière d'alternateur qui a été représenté sur la figure 1 comporte un roulement 1 monté dans un logement 2 ménagé sur un flasque 3 d'extrémité de l'alternateur. Ce palier assure la rotation de l'arbre, référencé par A, de l'alternateur. The alternator rear bearing which has been shown in FIG. 1 comprises a bearing 1 mounted in a housing 2 formed on a flange 3 at the end of the alternator. This bearing rotates the shaft, referenced by A, of the alternator.
Le roulement 1 comporte une bague externe 4, une bague interne 5 et des billes 6 montées entre les chemins de roulement que les deux bagues 4 et 5 présentent. The bearing 1 has an outer ring 4, an inner ring 5 and balls 6 mounted between the raceways that the two rings 4 and 5 have.
La bague externe 4 est montée serrée dans une capsule 7 métallique, par exemple en acier, guidée par le logement 2. The outer ring 4 is mounted tight in a metal capsule 7, for example made of steel, guided by the housing 2.
Ledit logement 2 est un orifice cylindrique qui traverse le flasque 3. Son diamètre est choisi de façon que la capsule 7 soit centrée et ajustée non serrée dans ledit logement 2. Said housing 2 is a cylindrical orifice which passes through the flange 3. Its diameter is chosen so that the capsule 7 is centered and adjusted loosely in said housing 2.
Le flasque 3 est en un alliage d'aluminium au magnésium. The flange 3 is made of an aluminum alloy with magnesium.
La capsule 7 présente un fond 8 et une paroi cylindrique 9. The capsule 7 has a bottom 8 and a cylindrical wall 9.
Lorsque la capsule 7 est en place sur le flasque 3, le fond 8 est situé sensiblement au niveau de la face extérieure dudit flasque 3. When the capsule 7 is in place on the flange 3, the bottom 8 is situated substantially at the level of the external face of said flange 3.
Le fond 8 présente une portée annulaire 10 à l'intérieur de la capsule 7, contre laquelle la bague externe 4 vient en butée. Cette portée 10 maintient un jeu entre la tranche de la bague interne 5 et le fond 8. The bottom 8 has an annular surface 10 inside the capsule 7, against which the outer ring 4 abuts. This bearing 10 maintains a clearance between the edge of the inner ring 5 and the bottom 8.
La paroi cylindrique 9 s'étend à partir dudit fond 8 jusqu'à la face intérieure du flasque 3. Cette paroi cylindrique 9 est interposée entre la bague externe 4 et la face interne du logement 2. The cylindrical wall 9 extends from said bottom 8 to the inner face of the flange 3. This cylindrical wall 9 is interposed between the outer ring 4 and the inner face of the housing 2.
Elle se prolonge à son extrémité opposée au fond 8 par plusieurs ergots 11 qui sont des pattes élastiques s'étendant à l'extérieur de la capsule 7 avec une forme de retour en U. Ces ergots 11 se terminent par des méplats 12 qui viennent en appui sur la face intérieure du flasque 3. It is extended at its end opposite to the bottom 8 by several lugs 11 which are elastic tabs extending outside the capsule 7 with a U-shaped return. These lugs 11 end in flats 12 which come in support on the inside of the flange 3.
Ces méplats 12 présentent des lumières 13 traversées par des vis 14 qui maintiennent lesdits méplats 12 sur le flasque 3, en autorisant leurs débattements radiaux.These flats 12 have openings 13 crossed by screws 14 which hold said flats 12 on the flange 3, allowing their radial deflections.
La bague interne 5 est montée serrée sur l'arbre
A. Elle est en appui, par sa tranche opposée au fond 8, sur un épaulement annulaire 15 que présente l'arbre A à l'intérieur de l'alternateur.The inner ring 5 is mounted tight on the shaft
A. It is supported, by its edge opposite the bottom 8, on an annular shoulder 15 which the shaft A has inside the alternator.
Avec la structure qui vient d'être décrite, la bague externe 4 est soumise par les ergots élastiques il à une force élastique qui a pour effet, grâce aux forces d'action et de réaction, d'annuler les jeux de fonctionnement aussi bien du roulement 1 du palier arrière représenté sur la figure 1, que du roulement du palier avant. With the structure which has just been described, the outer ring 4 is subjected by the elastic lugs 11 to an elastic force which has the effect, thanks to the action and reaction forces, of canceling the operating clearances as well bearing 1 of the rear bearing shown in FIG. 1, only from the bearing of the front bearing.
On calibre l'élasticité des ergots 11 pour ajuster la pré-contrainte ainsi exercée sur les roulements. The elasticity of the pins 11 is calibrated to adjust the pre-stress thus exerted on the bearings.
D'autres modes de réalisation sont bien entendu possibles. Other embodiments are of course possible.
On a repris pour les éléments des figures 1 et 2 qui se retrouvent sur le mode de réalisation des figures 3 et 4, la même numérotation de référence augmentée de 100. The same reference numbering increased by 100 was used for the elements of FIGS. 1 and 2 which are found in the embodiment of FIGS. 3 and 4.
Le palier représenté sur ces figures 3 et 4 comporte un roulement 101 monté dans un logement 102 d'un flasque 103. Ce roulement 101 est constitué d'une bague externe 104, d'une bague interne 105 et de billes 106. The bearing shown in these Figures 3 and 4 comprises a bearing 101 mounted in a housing 102 of a flange 103. This bearing 101 consists of an outer ring 104, an inner ring 105 and balls 106.
Ledit roulement 101 est reçu dans une capsule 117 qui présente un fond 108 et une paroi cylindrique 109 interposée entre la bague externe 104 et la face interne du logement 102. La bague externe 104 est montée serrée dans cette capsule 117 et est en butée sur une portée annulaire intérieure 110 que présente le fond 108. Ladite capsule 117 est guidée dans son déplacement axial par le logement 102. Said bearing 101 is received in a capsule 117 which has a bottom 108 and a cylindrical wall 109 interposed between the outer ring 104 and the inner face of the housing 102. The outer ring 104 is mounted tightly in this capsule 117 and is in abutment on a inner annular bearing 110 which the bottom 108 has. Said capsule 117 is guided in its axial displacement by the housing 102.
A son extrémité opposée au fond 108, la paroi 109 est prolongée par des ergots élastiques 118 et 119 en retour en U vers l'extérieur. At its end opposite the bottom 108, the wall 109 is extended by elastic lugs 118 and 119 back in U outwards.
Les ergots 118 se terminent par des méplats 118a qui viennent en appui sur la face intérieure du flasque 103. The lugs 118 terminate in flats 118a which come to bear on the inner face of the flange 103.
Les ergots 119, qui alternent avec les ergots 118 sur le pourtour de la capsule 117, traversent le flasque 103 au niveau d'ouvertures 120 que celui-ci présente, et sont retenus par coopération des méplats 119a qui les terminent avec la face extérieure du flasque 103. The pins 119, which alternate with the pins 118 on the periphery of the capsule 117, pass through the flange 103 at the level of openings 120 which the latter has, and are retained by cooperation of the flats 119a which terminate them with the external face of the flange 103.
La bague interne 105 est montée serrée sur l'arbre
A. Elle est en butée par sa tranche sur un épaulement annulaire 115 que ledit arbre A présente à l'intérieur de l'alternateur.The inner ring 105 is mounted tight on the shaft
A. It is in abutment by its edge on an annular shoulder 115 that said shaft A has inside the alternator.
Avec une telle structure, le roulement 101 est soumis, grace aux ergots élastiques 118 et 119, à une pr6- contrainte qui supprime les jeux de fonctionnement à la fois sur le palier arrière et sur le palier avant de l'alternateur. With such a structure, the bearing 101 is subjected, thanks to the elastic lugs 118 and 119, to a pr6-constraint which eliminates the operating clearances both on the rear bearing and on the front bearing of the alternator.
Sur les figures 5 et 10, on a illustré trois modes de réalisation conformes à une autre variante possible pour l'invention. On a repris pour les éléments de la variante des figures 1 et 2 qui se retrouvent sur cette variante la même numérotation de référence augmentée de 200. In FIGS. 5 and 10, three embodiments have been illustrated in accordance with another possible variant for the invention. The elements of the variant of FIGS. 1 and 2 which are found in this variant have been used the same reference numbering increased by 200.
Les paliers illustrés comprennent un roulement 201 qui comporte des bagues externe et interne 204 et 205, ainsi que des billes 206. Ce roulement 201 est monté dans un logement 202 d'un flasque 203, en étant reçu dans une capsule 217. The bearings illustrated comprise a bearing 201 which has external and internal rings 204 and 205, as well as balls 206. This bearing 201 is mounted in a housing 202 of a flange 203, being received in a capsule 217.
Cette capsule 217 comporte un fond 218, une paroi 219 interposée entre la bague externe 204 et le flasque 203, ainsi que des ergots plats 220 qui s'étendent radialement vers l'extérieur en prolongeant la tranche de la paroi 219 opposée au fond 218. Ces ergots 220 sont fixés en appui sur une portée annulaire 203a que présente la face intérieure du flasque 203. This capsule 217 comprises a bottom 218, a wall 219 interposed between the outer ring 204 and the flange 203, as well as flat lugs 220 which extend radially outwards by extending the edge of the wall 219 opposite the bottom 218. These lugs 220 are fixed in abutment on an annular bearing surface 203a which has the internal face of the flange 203.
Le fond 218 présente une pluralité de languettes élastiques intérieures 221 réparties en cercle, contre lesquelles la bague externe 204 est élastiquement en butée. The bottom 218 has a plurality of internal elastic tongues 221 distributed in a circle, against which the outer ring 204 is resiliently abutted.
La bague interne 205 est montée serrée sur l'arbre
A. Elle est en butée par sa tranche sur un épaulement annulaire 215 que ledit arbre A présente à l'intérieur de l'alternateur. The inner ring 205 is mounted tight on the shaft
A. It is in abutment by its edge on an annular shoulder 215 that said shaft A has inside the alternator.
Avec une telle structure, le roulement 201 est soumis, grâce aux ergots 220 et aux languettes élastiques 221, à une pré-contrainte qui supprime les jeux de fonctionnement à la fois sur le palier arrière et sur le palier avant de l'alternateur. With such a structure, the bearing 201 is subjected, thanks to the lugs 220 and the elastic tongues 221, to a pre-stress which eliminates the operating clearances both on the rear bearing and on the front bearing of the alternator.
Différents modes de réalisation de cette variante ont été illustrés. Different embodiments of this variant have been illustrated.
Sur le mode de réalisation représenté sur les figures 5 et 6, les languettes 221 s'étendent chacune du fond 218 vers l'intérieur de la capsule 217 sensiblement tangentiellement au cercle sur lequel elles sont disposées. Les ergots 220 sont fixés sur la portée annulaire 203a par l'intermédiaire de vis 222. In the embodiment shown in FIGS. 5 and 6, the tongues 221 each extend from the bottom 218 towards the inside of the capsule 217 substantially tangentially to the circle on which they are arranged. The pins 220 are fixed to the annular surface 203a by means of screws 222.
Sur le mode de réalisation illustré sur les figures 7 et 8, les languettes 221 s'étendent radialement vers l'intérieur de la capsule 217. Les ergots 220 sont maintenus sur la portée annulaire 203a par ltintermbdisire de rainures 223 dans lesquelles ils sont engagés. In the embodiment illustrated in FIGS. 7 and 8, the tongues 221 extend radially towards the interior of the capsule 217. The lugs 220 are held on the annular bearing surface 203a by the intertwining of grooves 223 in which they are engaged.
Sur le mode de réalisation particulièrement avantageux illustré sur les figures 9 et 10, la bague externe 204 du roulement 201 représenté en perspective sur la figure 10, présente des encoches 204a dans lesquelles s'engagent les languettes radiales 221, de sorte que la bague externe 204 est verrouillée en rotation par rapport à la capsule 207. In the particularly advantageous embodiment illustrated in Figures 9 and 10, the outer ring 204 of the bearing 201 shown in perspective in Figure 10, has notches 204a in which engage the radial tongues 221, so that the outer ring 204 is locked in rotation relative to the capsule 207.
D'autres variantes de l'invention sont encore possibles. En particulier, les caractéristiques des différents modes de réalisation décrits en référence aux figures 1 à 10 peuvent être combinées. Other variants of the invention are also possible. In particular, the characteristics of the various embodiments described with reference to Figures 1 to 10 can be combined.
Egalement, il pourrait être également envisagé que la capsule soit fendue. Also, it could also be envisaged that the capsule is split.
Les structures conformes à l'invention présentent de nombreux avantages. The structures according to the invention have many advantages.
Le jeu axial entre l'arbre et le roulement permet d'absorber les dilatations differentielles entre l'arbre A et son palier ; ce jeu permet également, une fois le roulement en place sur le flasque, le montage du palier sur l'arbre sans contrainte supplémentaire sur le roulement. The axial clearance between the shaft and the bearing makes it possible to absorb the differential expansions between the shaft A and its bearing; this clearance also allows, once the bearing in place on the flange, the mounting of the bearing on the shaft without additional stress on the bearing.
Le jeu du roulement par rapport à son support (flasque) est réduit, de sorte que le battement axial du rotor est limité. Dans le cas notamment d'un palier arrière, ce battement pourrait entraîner sous vibrations la destruction par écaillage du roulement avant. The clearance of the bearing relative to its support (flange) is reduced, so that the axial flapping of the rotor is limited. In the case in particular of a rear bearing, this flapping could lead under vibration to the destruction by chipping of the front bearing.
Egalement, avec une telle structure de palier, la température de fonctionnement du roulement est réduite, ce qui est favorable à une bonne lubrification. Also, with such a bearing structure, the operating temperature of the bearing is reduced, which is favorable for good lubrication.
La bague externe du roulement étant fixée rigidement, elle ne subit pas de rotation en présence de vibrations. On évite ainsi l'usure des parois du logement dans lequel le roulement est reçu. The outer ring of the bearing being rigidly fixed, it does not undergo rotation in the presence of vibrations. This prevents wear on the walls of the housing in which the bearing is received.
La concentricité parfaite entre le logement et le roulement permet d'éviter les bruits magnétiques provoqués sur le palier de l'art antérieur par le décentrage du rotor. The perfect concentricity between the housing and the bearing makes it possible to avoid the magnetic noises caused on the bearing of the prior art by the decentering of the rotor.
En outre, la solution proposée par l'invention est axialement et radialement peu encombrante. Elle est d'un coût réduit. In addition, the solution proposed by the invention is axially and radially compact. It is of reduced cost.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9500444A FR2729442B1 (en) | 1995-01-17 | 1995-01-17 | IMPROVEMENTS IN ROLLING BEARINGS FOR ROTATING MACHINES SUCH AS MOTOR VEHICLE ALTERNATORS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9500444A FR2729442B1 (en) | 1995-01-17 | 1995-01-17 | IMPROVEMENTS IN ROLLING BEARINGS FOR ROTATING MACHINES SUCH AS MOTOR VEHICLE ALTERNATORS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2729442A1 true FR2729442A1 (en) | 1996-07-19 |
| FR2729442B1 FR2729442B1 (en) | 1997-04-18 |
Family
ID=9475175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9500444A Expired - Fee Related FR2729442B1 (en) | 1995-01-17 | 1995-01-17 | IMPROVEMENTS IN ROLLING BEARINGS FOR ROTATING MACHINES SUCH AS MOTOR VEHICLE ALTERNATORS |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2729442B1 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19918351A1 (en) * | 1999-04-22 | 2000-10-26 | Volkswagen Ag | Bearing unit, in particular wheel bearing unit for motor vehicles |
| LU90672B1 (en) | 2000-11-07 | 2002-05-08 | Delphi Tech Inc | Bearing assembly for a rotary shaft machine |
| EP1757828A1 (en) * | 2005-08-23 | 2007-02-28 | Renault s.a.s. | Stopping device for a bearing system and mounting method |
| FR2897127A1 (en) * | 2006-02-06 | 2007-08-10 | Skf Ab | Anti-friction bearing`s ring rotation locking device, has ring with axial projection, and another projection cooperating with angular connecting unit of housing, where projection is radial and is directed towards exterior |
| DE102007049049A1 (en) * | 2007-10-11 | 2009-04-23 | Getrag Ford Transmissions Gmbh | Arrangement securing roller bearing outer ring axially and radially, includes locking tab engaging corresponding grooves in outer ring and supporting component |
| DE102007062363A1 (en) * | 2007-12-22 | 2009-06-25 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Bearing for oil pump i.e. gear type pump, shaft, has internal rotor driven by pump shaft, which is driven by pump wheel, and pump wheel arranged outside pimp housing, where pump wheel and pump shaft are formed as head arrangement |
| DE102008057222A1 (en) * | 2008-11-06 | 2010-05-12 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Bearing arrangement for use in railcar gearbox system, has pivot bearing and holding element, and pivot bearing has external part which is axially fixed relative to receiving housing, where holding element has rotation prevention section |
| DE102012017089A1 (en) | 2012-08-29 | 2014-03-06 | Audi Ag | Flange bearing arrangement arranged between gearbox and flanged shaft of speed-change gearbox for motorcar, has fitting sleeve that is provided with outer tapering cone portions along insertion direction to form closure |
| DE102016211741A1 (en) * | 2016-06-29 | 2018-01-04 | Schaeffler Technologies AG & Co. KG | Rolling and housing for a transmission |
| FR3058846A1 (en) * | 2016-11-15 | 2018-05-18 | Valeo Equipements Electriques Moteur | ROTATING ELECTRICAL MACHINE COMPRISING A ROTOR SHAFT AND A BEARING |
| DE102017109148A1 (en) | 2017-04-28 | 2018-10-31 | Schaeffler Technologies AG & Co. KG | Bearing ring with securing element for bearing preload and anti-rotation, rolling bearing and housing-shaft arrangement |
| EP3826149A1 (en) * | 2019-11-25 | 2021-05-26 | Hamilton Sundstrand Corporation | Generator assemblies, integrated drive generators, and methods of making generator assemblies |
| CN114145271A (en) * | 2021-12-14 | 2022-03-08 | 超级轮(苏州)渔具有限公司 | Silence fishing vessel with part is tightened to bearing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2858174A (en) * | 1956-02-17 | 1958-10-28 | John E Mitchell Company Inc | Bearing mounting |
| DE2146749A1 (en) * | 1971-09-18 | 1973-03-22 | Schaeffler Ohg Industriewerk | SLEEVE FOR FASTENING BEARINGS IN A HOUSING WALL |
| FR2351307A1 (en) * | 1976-05-12 | 1977-12-09 | Claret Andre | Axial retainer for ball bearing outer race - has disc with three equally spaced arms bent to fit into keyways in housing |
| US4128281A (en) * | 1977-04-21 | 1978-12-05 | Batkiewicz Stephen A | Auxiliary axial thrust bearing apparatus |
| DE3338507A1 (en) * | 1983-05-02 | 1984-11-08 | VEB Elektromotorenwerk Schleusingen, DDR 6056 Schleusingen | Elastic element for the tolerance-compensating installation of bearings |
-
1995
- 1995-01-17 FR FR9500444A patent/FR2729442B1/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2858174A (en) * | 1956-02-17 | 1958-10-28 | John E Mitchell Company Inc | Bearing mounting |
| DE2146749A1 (en) * | 1971-09-18 | 1973-03-22 | Schaeffler Ohg Industriewerk | SLEEVE FOR FASTENING BEARINGS IN A HOUSING WALL |
| FR2351307A1 (en) * | 1976-05-12 | 1977-12-09 | Claret Andre | Axial retainer for ball bearing outer race - has disc with three equally spaced arms bent to fit into keyways in housing |
| US4128281A (en) * | 1977-04-21 | 1978-12-05 | Batkiewicz Stephen A | Auxiliary axial thrust bearing apparatus |
| DE3338507A1 (en) * | 1983-05-02 | 1984-11-08 | VEB Elektromotorenwerk Schleusingen, DDR 6056 Schleusingen | Elastic element for the tolerance-compensating installation of bearings |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19918351A1 (en) * | 1999-04-22 | 2000-10-26 | Volkswagen Ag | Bearing unit, in particular wheel bearing unit for motor vehicles |
| LU90672B1 (en) | 2000-11-07 | 2002-05-08 | Delphi Tech Inc | Bearing assembly for a rotary shaft machine |
| EP1205680A1 (en) | 2000-11-07 | 2002-05-15 | Delphi Technologies, Inc. | Bearing assembly for a rotary shaft machine |
| EP1757828A1 (en) * | 2005-08-23 | 2007-02-28 | Renault s.a.s. | Stopping device for a bearing system and mounting method |
| FR2890138A1 (en) * | 2005-08-23 | 2007-03-02 | Renault Sas | BEARING SYSTEM STOP DEVICE AND MOUNTING METHOD |
| FR2897127A1 (en) * | 2006-02-06 | 2007-08-10 | Skf Ab | Anti-friction bearing`s ring rotation locking device, has ring with axial projection, and another projection cooperating with angular connecting unit of housing, where projection is radial and is directed towards exterior |
| DE102007049049A1 (en) * | 2007-10-11 | 2009-04-23 | Getrag Ford Transmissions Gmbh | Arrangement securing roller bearing outer ring axially and radially, includes locking tab engaging corresponding grooves in outer ring and supporting component |
| DE102007049049B4 (en) * | 2007-10-11 | 2010-02-18 | Getrag Ford Transmissions Gmbh | Arrangement for the axial and radial securing of a bearing outer ring of a rolling bearing on a component |
| DE102007062363A1 (en) * | 2007-12-22 | 2009-06-25 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Bearing for oil pump i.e. gear type pump, shaft, has internal rotor driven by pump shaft, which is driven by pump wheel, and pump wheel arranged outside pimp housing, where pump wheel and pump shaft are formed as head arrangement |
| DE102008057222B4 (en) * | 2008-11-06 | 2010-09-30 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | bearing arrangement |
| DE102008057222A1 (en) * | 2008-11-06 | 2010-05-12 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Bearing arrangement for use in railcar gearbox system, has pivot bearing and holding element, and pivot bearing has external part which is axially fixed relative to receiving housing, where holding element has rotation prevention section |
| DE102012017089A1 (en) | 2012-08-29 | 2014-03-06 | Audi Ag | Flange bearing arrangement arranged between gearbox and flanged shaft of speed-change gearbox for motorcar, has fitting sleeve that is provided with outer tapering cone portions along insertion direction to form closure |
| DE102012017089B4 (en) * | 2012-08-29 | 2014-09-11 | Audi Ag | Arrangement of a rolling bearing between a housing and a shaft |
| DE102016211741A1 (en) * | 2016-06-29 | 2018-01-04 | Schaeffler Technologies AG & Co. KG | Rolling and housing for a transmission |
| US10612598B2 (en) | 2016-06-29 | 2020-04-07 | Schaeffler Technologies AG & Co. KG | Rolling bearing and housing for a transmission |
| FR3058846A1 (en) * | 2016-11-15 | 2018-05-18 | Valeo Equipements Electriques Moteur | ROTATING ELECTRICAL MACHINE COMPRISING A ROTOR SHAFT AND A BEARING |
| DE102017109148A1 (en) | 2017-04-28 | 2018-10-31 | Schaeffler Technologies AG & Co. KG | Bearing ring with securing element for bearing preload and anti-rotation, rolling bearing and housing-shaft arrangement |
| EP3826149A1 (en) * | 2019-11-25 | 2021-05-26 | Hamilton Sundstrand Corporation | Generator assemblies, integrated drive generators, and methods of making generator assemblies |
| US11268575B2 (en) | 2019-11-25 | 2022-03-08 | Hamilton Sundstrand Corporation | Generator assemblies, integrated drive generators, and methods of making generator assemblies |
| US11808304B2 (en) | 2019-11-25 | 2023-11-07 | Hamilton Sundstrand Corporation | Generator assemblies, integrated drive generators, and methods of making generator assemblies |
| CN114145271A (en) * | 2021-12-14 | 2022-03-08 | 超级轮(苏州)渔具有限公司 | Silence fishing vessel with part is tightened to bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2729442B1 (en) | 1997-04-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |
Effective date: 20100930 |